Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.23.1
Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Federal statutory rate 21.00% 21.00%  
Operating loss carryforwards subject to limitations on use $ 133.4    
Abaca Inc | Subsidiaries [Member]      
Income tax examination notice amount   $ 1.1 $ 1.1
Mayflower Medicinals Inc [Member] | Subsidiaries [Member]      
Income tax examination notice amount     1.0
GHHIA Management Inc GHHIA [Member] | Subsidiaries [Member]      
Income tax examination notice amount     $ 8.5
Domestic Tax Authority [Member]      
Operating loss carryforwards $ 145.3    
Expiration period 2035 through 2037    
Domestic Tax Authority [Member] | CANADA | Minimum [Member]      
Open tax year 2013    
Domestic Tax Authority [Member] | CANADA | Maximum [Member]      
Open tax year 2020    
Domestic Tax Authority [Member] | UNITED STATES | Minimum [Member]      
Open tax year 2019    
Domestic Tax Authority [Member] | UNITED STATES | Maximum [Member]      
Open tax year 2021    
Domestic Tax Authority [Member] | Tax Period Two Thousand And Thirty Four Through Two Thousand And Thirty Seven [Member]      
Operating loss carryforwards $ 10.8    
Domestic Tax Authority [Member] | Indefinite Period [Member]      
Operating loss carryforwards 134.6    
State and Local Jurisdiction [Member]      
Operating loss carryforwards subject to limitations on use $ 2.0    
State and Local Jurisdiction [Member] | Minimum [Member]      
Open tax year 2019    
State and Local Jurisdiction [Member] | Maximum [Member]      
Open tax year 2021    
State and Local Jurisdiction [Member] | Tax Period Two Thousand And Thirty Five Through Two Thousand And Forty [Member]      
Operating loss carryforwards $ 135.4    
State and Local Jurisdiction [Member] | Tax Period Two Thousand And Thirty Five Through Two Thousand And Forty One [Member]      
Operating loss carryforwards $ 133.4    
Expiration period 2035 through 2042    
Canada Revenue Agency [Member]      
Expiration period 2025 through 2042    
Canada Revenue Agency [Member] | Tax Period Two Thousand And Thirty Four Through Two Thousand And Forty [Member]      
Non-capital loss carryforwards $ 119.5